Ribbon-spool for type-writing machines.



G. A. SEIB.

RIBBON' SPOOL. 3011 TYPE WRITING MACHINES.

APPLICATION FILED JUNE 17,1907.-

Patented July 13, 1909.

Fl ca. 1.

|NVENTDR= \A/ITNEEIEIEEH A g imI/a I-llE ATTEIRNEY UNITED STATES PATENT OFFICE.

GEORGE SEI B, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE MONARCH TYPEWRITER COMPANY, OF SYRACUSE; NEW YORK, A CORPORATION OF NEW YORK. I

RIBBON-SPOOL FOR TYPE-WRITING MACHINES.

Jo. 927,60e.

Specification of Letters Patent.

Patented July 13, 1909.

Application filed June 17, 1907. Serial No. 379,380.

. To all whom it may. concern:

Be it known that I, GEORGE A. Sam, citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Ribbon- Spools for Type-Writing Machines, of which the following is a specification.

My invention relates to ribbon spools for typewriting and like machines.

One object of my invention is to provide a ribbon spool which is simple in construction, comparatively inexpensive to manu v, facture and which is strong and efficient in use. I

Another object of my invention is, to provide simple and efficient means for readily detachably securing one end of a ribbon to the spool. I

To the above and other ends which will hereinafter appear, my invention consists of the features of construction, arrangements of parts and combinations of devices to be set forth in the following specification and particularly pointed out in the appended claims.

. In the accompanying drawings, Figure 1 is a horizontal sectional view of one form of ribbon spool embodying my invention, the section bein taken on the line -02 of Fig. 2 and looking in the direction of the arrow at saidline. .Fig. 2 is a side view of the ribbon spool with parts sectioned away. The ribbon spool comprises flanges or heads 1 and 2 which are preferably made of sheet metal and have alined driving-spindle receiving openings or perforations 3 located centrally thereof. The flange or plate '2 also has a circular series of perforations or apertures 4 surrounding the central perforation 3 therein. The purpose of this circularly arranged series of openings 4t is to provide means by which, the ribbon spools may be connected with-the. means for driving or wiprotating it,'-as. in theMonarch typewriter.

@heflanges are connected and may be maintained fspaced apart by posts or rivets 5, 6 and 7 three being shown in the present instance. The flanges 1 and 2 of the ribbon o spools bear'againstshoulders 8 of the rivets and the rivets are, headed at 9 to rigidly connect the flanges together. These rivets as shown in Fig. 1, are arranged outside of the circular series of openings 4 and are spaced at equal distances apart and at equal distances from the central perforations or apertures 3 in the flanges. The rivets 5, G and 7 constitute a core for the ribbon spool and around which the ribbon is wound.

A device 10 is provided for connecting one end of the ribbon 11 to the ribbon spool. This device is in the nature of a spring plate provided at one end with an eye or hearing 12 that surrounds the rivet 6 and pivotally connects the ribbon securing device thereto. The opposite or free end of the securing device 10 is bent so as to form a recess or catch 13 of a contour which corresponds to the contour of the rivet 7 with which it cooperates. A bend or portion 14 of the ribbon securing device is at a greater distance from the pivotal center of the device than the inner cooperating wall "I" of the rivet 7, (as indicated by the dotted line a) so that when the device 10 is swung on its pivot from the dotted line position to the full line position shown in Fig. 1, the part let is cammed towardthe rivet 6 and a slight compression of the device 10 is effected in the cneral direction of its length in order to ex the spring of which device 10 is formed and enable the portion 14 thereof to pass the portion 7 of the rivet 7. As the device moves to the full line position the resiliency of its shank will force the portion 14 outwardly away from 'the rivet 6 and thereby clamp the free end 13 of the device against the rivet 7 and secure by spring pressure the free end of the ribbon between the recessed portion 13 of said device and the rivet 7, as shown in Fig. 1. The winding of the ribbon around. the rivets or posts t .ds to maintain the catch in locked or ,working position. When the device 10 is in the locked )osition the device 10 and the rivets as well are all-enwrapped by the coils of the ribbonand the main body-portion of the device is contained mainly within lines which include the outer edges of the three rivets 5, 6 and 7, thus avoiding any bulging of the ribbon. I

From the foregoing description it will be understood that the free end of the ribbon can be connected with the ribbon sp'ool by dropping or passing it between the device 13 and the rivet '7. and by then forcing the device 10 to the full line or locking position shown in Fig. 1. In order to detach the ribbon from the spool when unwound, it is merely necessary to turn the ribbon back to the dotted line position (Fig. 1) and then to exert a longitudinal pull thereon. This will efi'ect a movement of the device 10,

' around its pivot'and unhook the catch when the ribbon may be-withdrawn. .The operator may attach the ribbon to or detach it from the'spools without soiling the hands.

Various changes may be made without departing from the spirit and scope of my invention.

' What I claim as new and desire to secure by Letters Patent, is:--

1. A ribbon spool for typewriting macbJines comprising spool flanges, separate members for connecting said flanges together, and a ribbon fastening device pivoted at one end to one of said members and connectible at its other end to another of said members.

2. A ribbon spool for typewriting machines comprising spool flanges, separate members for conne ct ng said flanges together, and a spring-acting ribbon fastening device pivoted at one end to one of said members and connectible at its other end to another of said members.

3. A. ribbon spool for typewriting machines comprising) spool flanges, separate posts interposed etween said flanges for connecting them together, and a ribbon fastening device pivoted at one endto one of said posts and connectible at its other end to another of said posts.

'4. A ribbon spool for typewriting machines comprising spool flanges, separate members for connecting said flanges together and for forming a core for said spool,

. anda ribbon fastening device pivoted to one of said members and detachably connectible to another.

5.1%. ribbon spool for typewriting machines comprising flanges, and a plurality ofiposts which connect the flanges and maintam them spaced apart and constitute a core,

and a ribbon fastening device pivoted to oneof said posts and movable thereon into and out of operative position.

6. A ribbon spool for typewriting inachines comprising flanges, a post off-set to one side of the center of the spool and extending between said flanges, and a ribbon connecting device pivotal-1y supported independently of said post and the flanges and cooperative with said post to hold said device in operative position.

7. A ilbbon spool for typewritmg machines comprising flanges, a post ofi-set lo one side of the center of the spool and extending between said flanges, and a-ribbon connecting device pivotally connected to the ribbon spoolindependently of said post and the flanges and codperative with said'-.p0st

and capable ofbeing sprunginto engagement'therewith to hold said tive position. T .1

o 8. A ribbon spool for typewriting ma-. chines comprisingflanges, a post off-set to evice in operaone side of the center of the spool and extending-between said fianges,and a ribbon connecting device pivotally connected to the ribbon spool independently. of said post. and the flange's and having arecessed portion adapted to grip said'postand clamp the end of a ribbon to the spool. p

9. A ribbon spool for typewriting 'machines comprising flanges, a post off-set to one side of the center of the spool and extending between said flanges, and a ribbon connecting device pivotally connected to the ribbon spool independently of said post and the flanges, said connecting device being made of spring metal and having a recessed portion which is adapted to grip said post and clamp the end of a ribbon against said post, the resiliency of the ribbon connecting device enabling it to be sprung into and out of engagement with said post.

10. A ribbon spool for typewnting marivets which unite said flanges. and maintain them spaced apart, said rivets constituting the core of the spool and on which the ribbon is wound, and a ribbon connecting de-. vice pivoted at one end on one of said rivets and having a recessedportion at the other one oflsaid posts and provided at its free end-with a catch co-acting with the other of chines comprising flanges, a plurality of ion said posts and between which and the catch 1 the ribbon end is clamped byt-he' resiliency of said plate.

13. A ribbon spool including a post, a resilient plate pivoted at one end to said post and having a recess'at its free end and an adjacent bend or projection, and a second post with which said bend or projection and said recess coiiperate to clamp the end of a ribbon upon the spool. a p

14. In combination with a ribbon spool having two posts, a resilient 'olate nivoted to one post and having a, recess and a pro- Signed at Syracuse, in the eonntynf Ononj ection t0 co-actwith the other post, the dis- (Inga, and State of New York, this 13th day tanee between said posts being less than the of June A. D. 1907. I length of said plate measured from its iv-' GEOSGE A.. SEIB.

otal end to said projection, whereby the p ate \Vitnesses:

is flexed and put under tension during the W. C. HAY, ribbon fastening operation. JOHN A. HANAL. 

